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<div class="titlepage"><div><div><h5 class="title">
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy"></a><a class="link" href="expand_3_with_strategy.html" title="expand (with strategy)">expand
          (with strategy)</a>
</h5></div></div></div>
<p>
            <a class="indexterm" name="idm46002"></a>
Expands (with strategy)
          </p>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h0"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.synopsis"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.synopsis">Synopsis</a>
          </h6>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Box</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Strategy</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="identifier">expand</span><span class="special">(</span><span class="identifier">Box</span> <span class="special">&amp;</span> <span class="identifier">box</span><span class="special">,</span> <span class="identifier">Geometry</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry</span><span class="special">,</span> <span class="identifier">Strategy</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">strategy</span><span class="special">)</span></pre>
<p>
          </p>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h1"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.parameters"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.parameters">Parameters</a>
          </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                    <p>
                      Type
                    </p>
                  </th>
<th>
                    <p>
                      Concept
                    </p>
                  </th>
<th>
                    <p>
                      Name
                    </p>
                  </th>
<th>
                    <p>
                      Description
                    </p>
                  </th>
</tr></thead>
<tbody>
<tr>
<td>
                    <p>
                      Box &amp;
                    </p>
                  </td>
<td>
                    <p>
                      type of the box
                    </p>
                  </td>
<td>
                    <p>
                      box
                    </p>
                  </td>
<td>
                    <p>
                      box to be expanded using another geometry, mutable
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      Geometry const &amp;
                    </p>
                  </td>
<td>
                    <p>
                      Any type fulfilling a Geometry Concept
                    </p>
                  </td>
<td>
                    <p>
                      geometry
                    </p>
                  </td>
<td>
                    <p>
                      A model of the specified concept geometry which envelope (bounding
                      box)
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      Strategy const &amp;
                    </p>
                  </td>
<td>
                    <p>
                      Any type fulfilling a expand Strategy Concept
                    </p>
                  </td>
<td>
                    <p>
                      strategy
                    </p>
                  </td>
<td>
                    <p>
                      The strategy which will be used for expand calculations will
                      be added to the box
                    </p>
                  </td>
</tr>
</tbody>
</table></div>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h2"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.header"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.header">Header</a>
          </h6>
<p>
            Either
          </p>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
          </p>
<p>
            Or
          </p>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">algorithms</span><span class="special">/</span><span class="identifier">expand</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
          </p>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h3"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.conformance"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.conformance">Conformance</a>
          </h6>
<p>
            The function expand is not defined by OGC.
          </p>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h4"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.behavior"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.behavior">Behavior</a>
          </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                    <p>
                      Case
                    </p>
                  </th>
<th>
                    <p>
                      Behavior
                    </p>
                  </th>
</tr></thead>
<tbody>
<tr>
<td>
                    <p>
                      Box / Point
                    </p>
                  </td>
<td>
                    <p>
                      Box is expanded to include the specified Point
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      Box / Box
                    </p>
                  </td>
<td>
                    <p>
                      Box is expanded to include the specified Box
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      Box / Other geometries
                    </p>
                  </td>
<td>
                    <p>
                      Not yet supported in this version
                    </p>
                  </td>
</tr>
</tbody>
</table></div>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
              To use expand with another geometry type then specified, use expand(make_envelope&lt;box_type&gt;(geometry)
            </p></td></tr>
</table></div>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h5"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.complexity"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.complexity">Complexity</a>
          </h6>
<p>
            Linear
          </p>
<h6>
<a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h6"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.example"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.example">Example</a>
          </h6>
<p>
            Shows the usage of expand
          </p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">list</span><span class="special">&gt;</span>

<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">box</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">point_xy</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>

<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">d2</span><span class="special">::</span><span class="identifier">point_xy</span><span class="special">&lt;</span><span class="keyword">short</span> <span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">point_type</span><span class="special">;</span>
    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">box</span><span class="special">&lt;</span><span class="identifier">point_type</span><span class="special">&gt;</span> <span class="identifier">box_type</span><span class="special">;</span>

    <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">expand</span><span class="special">;</span>

    <span class="identifier">box_type</span> <span class="identifier">box</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">make_inverse</span><span class="special">&lt;</span><span class="identifier">box_type</span><span class="special">&gt;();</span> <a class="co" name="geometry.reference.algorithms.expand.expand_3_with_strategy.c0" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.c1"><img src="../../../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a>

    <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">));</span>
    <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">));</span>
    <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">(</span><span class="number">5</span><span class="special">,</span> <span class="number">4</span><span class="special">));</span>
    <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">make</span><span class="special">&lt;</span><span class="identifier">box_type</span><span class="special">&gt;(</span><span class="number">3</span><span class="special">,</span> <span class="number">3</span><span class="special">,</span> <span class="number">5</span><span class="special">,</span> <span class="number">5</span><span class="special">));</span>

    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">dsv</span><span class="special">(</span><span class="identifier">box</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>

    <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
          </p>
<div class="calloutlist"><table border="0" summary="Callout list"><tr>
<td width="5%" valign="top" align="left"><p><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.c1"></a><a href="#geometry.reference.algorithms.expand.expand_3_with_strategy.c0"><img src="../../../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a> </p></td>
<td valign="top" align="left"><p>
                expand is usually preceded by a call to assign_inverse or make_inverse
              </p></td>
</tr></table></div>
<p>
            Output:
          </p>
<pre class="programlisting">((0, 0), (5, 5))
</pre>
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<td align="right"><div class="copyright-footer">Copyright © 2009-2021 Barend Gehrels,
      Bruno Lalande, Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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